Self and eugene e



UNITED STATES PATENT OFFICE.

ZEBULON E. OOFFIN, OF NEWTON, MASSACHUSETTS, ASSIGNOR TO HIM- SELF AND EUGENE E. COFFIN, OF SAME PLACE.

HYDRANT VALVE.

SPECIFICATION forming part of Letters Patent No. 243,691, dated July 5, 1881 Application filed April 19, 1881.

To all whom it may concern:

Be it known that I, Z. E. OoFFIN, of the city of Newton, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Hydrants; and I do hereby declare the following to be a full and exact description" thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

With reference to the drawings, Figure 1 is an elevation of the lower part of ahydrant to which my improvements pertain. Fig. 2 is a central vertical section, the view being taken at right angles with that of Fig. 1. Fig. 3 is a plan of the same parts, and Fig. 4 is a horizontal sectional view taken through or near the center of both the bell and valve and the fulcrum-pivot of the toggle-lever a.

Like letters refer to the same or corresponding parts in all the figures. I

The lower part of a hydrant, b, is shown in the drawings, of which 0 is the bell-nozzle, to which the supply-pipe is to be joined. It has also the waste-opening d and the flange e at the top, to which the top part of the hydrant, the delivery-pipes and nozzles, and-head is to be joined or cast. These upper parts of the hydrant, including the screw-nut, 860., or other devices for moving the valve, may be of any approved kind or construction; so as to methods ofjoining the parts and of connecting the supply-pipe at c.

The valve which admits the supply from the supply-pipe is marked 6, and its seat is marked f. This valve 0 is moved downward to open the supply and upward to close it by means of the rod 9, which rod may be moved up and down by means ofa screw or other means, or may be stationary in respect to the up-anddown movement of the valve, and in the latter case screw into a nut attached to or formed in the valve e.

A toggle, a, has its fulcrum in the shoe or seat h, which, with itself and the valve 6, may all be drawn out togetherwhen the top parts of the hydrant are removed, as shown in the drawings. When the top parts are put on again they shut'over the top end of the shoe h and prevent its rising. The shoe it rests in a groove or socket in the casting, as shown,

(No model.)

whereby it is kept in place. As the valve 0 is drawn up the toggle a comes in contact with the raised back of the valve'at 'i, and it is thereby forced to its seat with great power. The toggle a has an extension at the top and another at the bottom. At the lower end is a valve, j, which serves to open and close the waste-opening d. When the valve 0 is forced downward to open it, its lower end, or a part formed for the purpose, comes in contact with the downward extension of the toggle a at or near k and throwsthe valve j to its seat, so closing the waste-opening d, and it remains thus closed while the water is flowing. When the valve 0 is drawn up to shut off the water flowing in at 0, the upper end of the valve, or a part formed for the purpose, comes' in contact with the upward extension of toggle a just at the time or before the toggle acts to force valve 6 to its seat, and throws the valve j at the lower end of the lever formed by toggle a and extensions off its seat, so opening the wasteway atd and allowing the water to drain out of the hydrant.

The valve seats and faces can be made in any of the usual suitable methods, and the parts of the usual materials-iron, brass, &c.

It will be noticed that the described construction drains the water almost to the extreme bottom. The immediate prompt opening and closing of the waste at the proper time is secured. A very free and easy movement of the main valve is secured with great pressure at its final seating, which secures very perfect closing or tightness of the valve.

I claim- 1. In a hydrant, in combination with the valve 6 and its seat, the.toggle a and shoe h, substantially as described.

2. The combination of the fulcrum Z, extension or lever m n, and valve j with the main valve 0, substantially as described.

3. The sliding shoe or fulcrum plate It, in

combination with the togglet' l and valve 6,

substantially as described.

4. The combination of rod g, valve 0, toggle i l, lever m n, and valvej, substantially as de-' scribed.

ZEBULON ERASTUS OOFFI N. 

